401456280 has 64 divisors (see below), whose sum is σ = 1245909600. Its totient is φ = 103362560.

The previous prime is 401456269. The next prime is 401456287. The reversal of 401456280 is 82654104.

It is a super-2 number, since 2×401456280² = 322334289502876800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401456287) 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, 54201 + ... + 61160.

Almost surely, 2^401456280 is an apocalyptic number.

401456280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401456280 is an abundant number, since it is smaller than the sum of its proper divisors (844453320).

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

401456280 is a wasteful number, since it uses less digits than its factorization.

401456280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115404 (or 115400 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 401456280 is about 20036.3739234423. The cubic root of 401456280 is about 737.6993803556.

The spelling of 401456280 in words is "four hundred one million, four hundred fifty-six thousand, two hundred eighty".