1631364 has 24 divisors (see below), whose sum is σ = 4350528. Its totient is φ = 466080.

The previous prime is 1631363. The next prime is 1631369. The reversal of 1631364 is 4631361.

It is a super-2 number, since 2×1631364² = 5322697000992, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (1631363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9627 + ... + 9794.

It is an arithmetic number, because the mean of its divisors is an integer number (181272).

2^1631364 is an apocalyptic number.

1631364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1631364 is an abundant number, since it is smaller than the sum of its proper divisors (2719164).

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

1631364 is a wasteful number, since it uses less digits than its factorization.

1631364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19435 (or 19433 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 1631364 is about 1277.2486054015. The cubic root of 1631364 is about 117.7200103034.

The spelling of 1631364 in words is "one million, six hundred thirty-one thousand, three hundred sixty-four".