402690054 has 32 divisors (see below), whose sum is σ = 869720544. Its totient is φ = 123563520.

The previous prime is 402690053. The next prime is 402690059. The reversal of 402690054 is 450096204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402690053) 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, 22174 + ... + 36014.

It is an arithmetic number, because the mean of its divisors is an integer number (27178767).

Almost surely, 2^402690054 is an apocalyptic number.

402690054 is an abundant number, since it is smaller than the sum of its proper divisors (467030490).

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

402690054 is a wasteful number, since it uses less digits than its factorization.

402690054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14232.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 402690054 is about 20067.1386600083. The cubic root of 402690054 is about 738.4543181269.

The spelling of 402690054 in words is "four hundred two million, six hundred ninety thousand, fifty-four".