401740780 has 48 divisors (see below), whose sum is σ = 995291136. Its totient is φ = 133295040.

The previous prime is 401740771. The next prime is 401740813. The reversal of 401740780 is 87047104.

It is a super-2 number, since 2×401740780² = 322791308630016800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 41944 + ... + 50623.

It is an arithmetic number, because the mean of its divisors is an integer number (20735232).

Almost surely, 2^401740780 is an apocalyptic number.

It is an amenable number.

401740780 is an abundant number, since it is smaller than the sum of its proper divisors (593550356).

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

401740780 is a wasteful number, since it uses less digits than its factorization.

401740780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92614 (or 92612 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 401740780 is about 20043.4722540781. The cubic root of 401740780 is about 737.8736010003.

Adding to 401740780 its reverse (87047104), we get a palindrome (488787884).

The spelling of 401740780 in words is "four hundred one million, seven hundred forty thousand, seven hundred eighty".