1047423740 has 48 divisors (see below), whose sum is σ = 2482310880. Its totient is φ = 367745280.

The previous prime is 1047423733. The next prime is 1047423757. The reversal of 1047423740 is 473247401.

It is a super-2 number, since 2×1047423740² = 2194192982231175200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1047423697 and 1047423706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75707 + ... + 88466.

It is an arithmetic number, because the mean of its divisors is an integer number (51714810).

Almost surely, 2^1047423740 is an apocalyptic number.

1047423740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1047423740 is an abundant number, since it is smaller than the sum of its proper divisors (1434887140).

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

1047423740 is a wasteful number, since it uses less digits than its factorization.

1047423740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164222 (or 164220 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 1047423740 is about 32363.9265232141. The cubic root of 1047423740 is about 1015.5644057766.

The spelling of 1047423740 in words is "one billion, forty-seven million, four hundred twenty-three thousand, seven hundred forty".