401771088 has 30 divisors (see below), whose sum is σ = 1124401434. Its totient is φ = 133923648.

The previous prime is 401771053. The next prime is 401771089. The reversal of 401771088 is 880177104.

It can be written as a sum of positive squares in only one way, i.e., 338854464 + 62916624 = 18408^2 + 7932^2 .

It is a super-2 number, since 2×401771088² = 322840014305407488, 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 not an unprimeable number, because it can be changed into a prime (401771089) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1394895 + ... + 1395182.

Almost surely, 2^401771088 is an apocalyptic number.

401771088 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

401771088 is an abundant number, since it is smaller than the sum of its proper divisors (722630346).

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

401771088 is a wasteful number, since it uses less digits than its factorization.

401771088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790091 (or 2790082 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 401771088 is about 20044.2282964448. The cubic root of 401771088 is about 737.8921560088.

The spelling of 401771088 in words is "four hundred one million, seven hundred seventy-one thousand, eighty-eight".