401545340 has 24 divisors (see below), whose sum is σ = 963709152. Its totient is φ = 137672640.

The previous prime is 401545303. The next prime is 401545367. The reversal of 401545340 is 43545104.

It is a super-2 number, since 2×401545340² = 322477320151431200, which contains 22 as substring.

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, 1433951 + ... + 1434230.

It is an arithmetic number, because the mean of its divisors is an integer number (40154548).

Almost surely, 2^401545340 is an apocalyptic number.

It is an amenable number.

401545340 is an abundant number, since it is smaller than the sum of its proper divisors (562163812).

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

401545340 is a wasteful number, since it uses less digits than its factorization.

401545340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868197 (or 2868195 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 401545340 is about 20038.5962582213. The cubic root of 401545340 is about 737.7539273074.

The spelling of 401545340 in words is "four hundred one million, five hundred forty-five thousand, three hundred forty".