402146260 has 48 divisors (see below), whose sum is σ = 909683712. Its totient is φ = 148896000.

The previous prime is 402146257. The next prime is 402146263. The reversal of 402146260 is 62641204.

It is an interprime number because it is at equal distance from previous prime (402146257) and next prime (402146263).

It is a super-2 number, since 2×402146260² = 323443228863975200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402146263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160 + ... + 28360.

It is an arithmetic number, because the mean of its divisors is an integer number (18951744).

Almost surely, 2^402146260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402146260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454841856).

402146260 is an abundant number, since it is smaller than the sum of its proper divisors (507537452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402146260 is a wasteful number, since it uses less digits than its factorization.

402146260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28264 (or 28262 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 402146260 is about 20053.5847169527. The cubic root of 402146260 is about 738.1217646585.

Adding to 402146260 its reverse (62641204), we get a palindrome (464787464).

The spelling of 402146260 in words is "four hundred two million, one hundred forty-six thousand, two hundred sixty".