401782455 has 48 divisors (see below), whose sum is σ = 735920640. Its totient is φ = 202219200.

The previous prime is 401782429. The next prime is 401782487. The reversal of 401782455 is 554287104.

401782455 is a `hidden beast` number, since 401 + 7 + 8 + 245 + 5 = 666.

It is not a de Polignac number, because 401782455 - 2⁹ = 401781943 is a prime.

It is a super-2 number, since 2×401782455² = 322858282291654050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 265150 + ... + 266660.

It is an arithmetic number, because the mean of its divisors is an integer number (15331680).

Almost surely, 2^401782455 is an apocalyptic number.

401782455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

401782455 is a deficient number, since it is larger than the sum of its proper divisors (334138185).

401782455 is a wasteful number, since it uses less digits than its factorization.

401782455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852 (or 1849 counting only the distinct ones).

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

The square root of 401782455 is about 20044.5118423972. The cubic root of 401782455 is about 737.8991148147.

The spelling of 401782455 in words is "four hundred one million, seven hundred eighty-two thousand, four hundred fifty-five".