1623338040 has 32 divisors (see below), whose sum is σ = 4870014480. Its totient is φ = 432890112.

The previous prime is 1623337993. The next prime is 1623338053. The reversal of 1623338040 is 408333261.

It is a super-2 number, since 2×1623338040² = 5270452784222083200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1623337989 and 1623338007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6763789 + ... + 6764028.

Almost surely, 2^1623338040 is an apocalyptic number.

1623338040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1623338040 is an abundant number, since it is smaller than the sum of its proper divisors (3246676440).

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

1623338040 is a wasteful number, since it uses less digits than its factorization.

1623338040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13527831 (or 13527827 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1623338040 is about 40290.6693913119. The cubic root of 1623338040 is about 1175.2664046614.

The spelling of 1623338040 in words is "one billion, six hundred twenty-three million, three hundred thirty-eight thousand, forty".