401980425 has 96 divisors (see below), whose sum is σ = 846802944. Its totient is φ = 163392000.

The previous prime is 401980421. The next prime is 401980427. The reversal of 401980425 is 524089104.

It is not a de Polignac number, because 401980425 - 2² = 401980421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (401980421) 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 95 ways as a sum of consecutive naturals, for example, 270685 + ... + 272165.

It is an arithmetic number, because the mean of its divisors is an integer number (8820864).

Almost surely, 2^401980425 is an apocalyptic number.

It is an amenable number.

401980425 is an abundant number, since it is smaller than the sum of its proper divisors (444822519).

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

401980425 is a wasteful number, since it uses less digits than its factorization.

401980425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559 (or 1554 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 401980425 is about 20049.4494936893. The cubic root of 401980425 is about 738.0202897602.

The spelling of 401980425 in words is "four hundred one million, nine hundred eighty thousand, four hundred twenty-five".