402031541 has 8 divisors (see below), whose sum is σ = 410688000. Its totient is φ = 393441840.

The previous prime is 402031537. The next prime is 402031547. The reversal of 402031541 is 145130204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402031541 - 2² = 402031537 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402031547) 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, 4421 + ... + 28698.

It is an arithmetic number, because the mean of its divisors is an integer number (51336000).

Almost surely, 2^402031541 is an apocalyptic number.

It is an amenable number.

402031541 is a deficient number, since it is larger than the sum of its proper divisors (8656459).

402031541 is a wasteful number, since it uses less digits than its factorization.

402031541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33379.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 402031541 is about 20050.7242013848. The cubic root of 402031541 is about 738.0515707579.

Adding to 402031541 its reverse (145130204), we get a palindrome (547161745).

The spelling of 402031541 in words is "four hundred two million, thirty-one thousand, five hundred forty-one".