401525748 has 90 divisors (see below), whose sum is σ = 1136777334. Its totient is φ = 123529536.

The previous prime is 401525723. The next prime is 401525753. The reversal of 401525748 is 847525104.

It can be written as a sum of positive squares in 3 ways, for example, as 47032164 + 354493584 = 6858^2 + 18828^2 .

It is a super-2 number, since 2×401525748² = 322445852613919008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 51090 + ... + 58422.

Almost surely, 2^401525748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401525748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568388667).

401525748 is an abundant number, since it is smaller than the sum of its proper divisors (735251586).

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

401525748 is a wasteful number, since it uses less digits than its factorization.

401525748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7375 (or 7351 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 401525748 is about 20038.1073956599. The cubic root of 401525748 is about 737.7419284050.

The spelling of 401525748 in words is "four hundred one million, five hundred twenty-five thousand, seven hundred forty-eight".