1538964294 has 16 divisors (see below), whose sum is σ = 3517632768. Its totient is φ = 439704072.

The previous prime is 1538964277. The next prime is 1538964307. The reversal of 1538964294 is 4924698351.

It is a super-2 number, since 2×1538964294² = 4736822196413836872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18320962 + ... + 18321045.

It is an arithmetic number, because the mean of its divisors is an integer number (219852048).

Almost surely, 2^1538964294 is an apocalyptic number.

1538964294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1538964294 is an abundant number, since it is smaller than the sum of its proper divisors (1978668474).

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

1538964294 is a wasteful number, since it uses less digits than its factorization.

1538964294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36642019.

The product of its digits is 1866240, while the sum is 51.

The square root of 1538964294 is about 39229.6354048824. The cubic root of 1538964294 is about 1154.5414104913.

The spelling of 1538964294 in words is "one billion, five hundred thirty-eight million, nine hundred sixty-four thousand, two hundred ninety-four".