29977842 has 16 divisors (see below), whose sum is σ = 60429312. Its totient is φ = 9913680.

The previous prime is 29977823. The next prime is 29977853. The reversal of 29977842 is 24877992.

It is a junction number, because it is equal to n+sod(n) for n = 29977791 and 29977800.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18909 + ... + 20432.

It is an arithmetic number, because the mean of its divisors is an integer number (3776832).

Almost surely, 2^29977842 is an apocalyptic number.

29977842 is an abundant number, since it is smaller than the sum of its proper divisors (30451470).

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

29977842 is a wasteful number, since it uses less digits than its factorization.

29977842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39473.

The product of its digits is 508032, while the sum is 48.

The square root of 29977842 is about 5475.2024620100. The cubic root of 29977842 is about 310.6467316890.

The spelling of 29977842 in words is "twenty-nine million, nine hundred seventy-seven thousand, eight hundred forty-two".