1031179428 has 18 divisors (see below), whose sum is σ = 2606592534. Its totient is φ = 343726464.

The previous prime is 1031179417. The next prime is 1031179433. The reversal of 1031179428 is 8249711301.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 562543524 + 468635904 = 23718^2 + 21648^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 28643873 = 1031179428 / (1 + 0 + 3 + 1 + 1 + 7 + 9 + 4 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 1031179392 and 1031179401.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14321901 + ... + 14321972.

Almost surely, 2^1031179428 is an apocalyptic number.

1031179428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1031179428 is an abundant number, since it is smaller than the sum of its proper divisors (1575413106).

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

1031179428 is a wasteful number, since it uses less digits than its factorization.

1031179428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28643883 (or 28643878 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1031179428 is about 32111.9826233137. The cubic root of 1031179428 is about 1010.2869582952.

The spelling of 1031179428 in words is "one billion, thirty-one million, one hundred seventy-nine thousand, four hundred twenty-eight".