402026472 has 192 divisors, whose sum is σ = 1238328000. Its totient is φ = 117061632.

The previous prime is 402026467. The next prime is 402026473. The reversal of 402026472 is 274620204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (402026473) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1371958 + ... + 1372250.

It is an arithmetic number, because the mean of its divisors is an integer number (6449625).

Almost surely, 2^402026472 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 402026472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619164000).

402026472 is an abundant number, since it is smaller than the sum of its proper divisors (836301528).

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

402026472 is a wasteful number, since it uses less digits than its factorization.

402026472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 402026472 is about 20050.5977965745. The cubic root of 402026472 is about 738.0484688461.

Adding to 402026472 its reverse (274620204), we get a palindrome (676646676).

The spelling of 402026472 in words is "four hundred two million, twenty-six thousand, four hundred seventy-two".