1613993442 has 32 divisors (see below), whose sum is σ = 3343140864. Its totient is φ = 519128400.

The previous prime is 1613993401. The next prime is 1613993443. The reversal of 1613993442 is 2443993161.

It is a super-3 number, since 3×1613993442³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1613993394 and 1613993403.

It is not an unprimeable number, because it can be changed into a prime (1613993443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20284 + ... + 60327.

It is an arithmetic number, because the mean of its divisors is an integer number (104473152).

Almost surely, 2^1613993442 is an apocalyptic number.

1613993442 is an abundant number, since it is smaller than the sum of its proper divisors (1729147422).

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

1613993442 is a wasteful number, since it uses less digits than its factorization.

1613993442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80734.

The product of its digits is 139968, while the sum is 42.

The square root of 1613993442 is about 40174.5372344225. The cubic root of 1613993442 is about 1173.0069588934.

The spelling of 1613993442 in words is "one billion, six hundred thirteen million, nine hundred ninety-three thousand, four hundred forty-two".