29978022 has 16 divisors (see below), whose sum is σ = 60192432. Its totient is φ = 9953280.

The previous prime is 29978017. The next prime is 29978027. The reversal of 29978022 is 22087992.

It is an interprime number because it is at equal distance from previous prime (29978017) and next prime (29978027).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29978027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8179 + ... + 11262.

It is an arithmetic number, because the mean of its divisors is an integer number (3762027).

Almost surely, 2^29978022 is an apocalyptic number.

29978022 is an abundant number, since it is smaller than the sum of its proper divisors (30214410).

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

29978022 is a wasteful number, since it uses less digits than its factorization.

29978022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19703.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 29978022 is about 5475.2188997336. The cubic root of 29978022 is about 310.6473534405.

The spelling of 29978022 in words is "twenty-nine million, nine hundred seventy-eight thousand, twenty-two".