401052780 has 72 divisors (see below), whose sum is σ = 1288096992. Its totient is φ = 100655616.

The previous prime is 401052767. The next prime is 401052781. The reversal of 401052780 is 87250104.

It is not an unprimeable number, because it can be changed into a prime (401052781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62472 + ... + 68591.

It is an arithmetic number, because the mean of its divisors is an integer number (17890236).

Almost surely, 2^401052780 is an apocalyptic number.

It is an amenable number.

401052780 is an abundant number, since it is smaller than the sum of its proper divisors (887044212).

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

401052780 is a wasteful number, since it uses less digits than its factorization.

401052780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131095 (or 131090 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 401052780 is about 20026.3022048505. The cubic root of 401052780 is about 737.4521458943.

The spelling of 401052780 in words is "four hundred one million, fifty-two thousand, seven hundred eighty".