401297436 has 24 divisors (see below), whose sum is σ = 1040401040. Its totient is φ = 133765776.

The previous prime is 401297419. The next prime is 401297443. The reversal of 401297436 is 634792104.

It is a super-2 number, since 2×401297436² = 322079264280348192, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 401297436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1857751 + ... + 1857966.

Almost surely, 2^401297436 is an apocalyptic number.

It is an amenable number.

401297436 is an abundant number, since it is smaller than the sum of its proper divisors (639103604).

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

401297436 is a wasteful number, since it uses less digits than its factorization.

401297436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715730 (or 3715722 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 401297436 is about 20032.4096403803. The cubic root of 401297436 is about 737.6020724756.

The spelling of 401297436 in words is "four hundred one million, two hundred ninety-seven thousand, four hundred thirty-six".