402434541 has 8 divisors (see below), whose sum is σ = 596199360. Its totient is φ = 268289676.

The previous prime is 402434477. The next prime is 402434551. The reversal of 402434541 is 145434204.

It is a happy number.

It is not a de Polignac number, because 402434541 - 2⁶ = 402434477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 14904983 = 402434541 / (4 + 0 + 2 + 4 + 3 + 4 + 5 + 4 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402434551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7452465 + ... + 7452518.

It is an arithmetic number, because the mean of its divisors is an integer number (74524920).

Almost surely, 2^402434541 is an apocalyptic number.

It is an amenable number.

402434541 is a deficient number, since it is larger than the sum of its proper divisors (193764819).

402434541 is a wasteful number, since it uses less digits than its factorization.

402434541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14904992 (or 14904986 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 402434541 is about 20060.7711965418. The cubic root of 402434541 is about 738.2980982267.

Adding to 402434541 its reverse (145434204), we get a palindrome (547868745).

The spelling of 402434541 in words is "four hundred two million, four hundred thirty-four thousand, five hundred forty-one".