29150920 has 64 divisors (see below), whose sum is σ = 70139520. Its totient is φ = 10865664.

The previous prime is 29150911. The next prime is 29150929. The reversal of 29150920 is 2905192.

It is an interprime number because it is at equal distance from previous prime (29150911) and next prime (29150929).

It is a super-2 number, since 2×29150920² = 1699552273692800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29150929) 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, 110709 + ... + 110971.

It is an arithmetic number, because the mean of its divisors is an integer number (1095930).

Almost surely, 2^29150920 is an apocalyptic number.

29150920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29150920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35069760).

29150920 is an abundant number, since it is smaller than the sum of its proper divisors (40988600).

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

29150920 is a wasteful number, since it uses less digits than its factorization.

29150920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 29150920 is about 5399.1591938005. The cubic root of 29150920 is about 307.7637193865.

The spelling of 29150920 in words is "twenty-nine million, one hundred fifty thousand, nine hundred twenty".