401477254740 has 72 divisors (see below), whose sum is σ = 1237778542728. Its totient is φ = 105305506560.

The previous prime is 401477254727. The next prime is 401477254753. The reversal of 401477254740 is 47452774104.

It is an interprime number because it is at equal distance from previous prime (401477254727) and next prime (401477254753).

It can be written as a sum of positive squares in 4 ways, for example, as 856615824 + 400620638916 = 29268^2 + 632946^2 .

It is a super-2 number, since 2×401477254740² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18271227 + ... + 18293186.

It is an arithmetic number, because the mean of its divisors is an integer number (17191368649).

Almost surely, 2^401477254740 is an apocalyptic number.

It is an amenable number.

401477254740 is an abundant number, since it is smaller than the sum of its proper divisors (836301287988).

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

401477254740 is a wasteful number, since it uses less digits than its factorization.

401477254740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36564489 (or 36564484 counting only the distinct ones).

The product of its (nonzero) digits is 878080, while the sum is 45.

The spelling of 401477254740 in words is "four hundred one billion, four hundred seventy-seven million, two hundred fifty-four thousand, seven hundred forty".