29481630 has 32 divisors (see below), whose sum is σ = 73833984. Its totient is φ = 7519776.

The previous prime is 29481629. The next prime is 29481631. The reversal of 29481630 is 3618492.

It is an interprime number because it is at equal distance from previous prime (29481629) and next prime (29481631).

It is a super-3 number, since 3×29481630³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29481591 and 29481600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29481631) 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, 20674 + ... + 22053.

It is an arithmetic number, because the mean of its divisors is an integer number (2307312).

Almost surely, 2^29481630 is an apocalyptic number.

29481630 is an abundant number, since it is smaller than the sum of its proper divisors (44352354).

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

29481630 is a wasteful number, since it uses less digits than its factorization.

29481630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42760.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 29481630 is about 5429.6988866787. The cubic root of 29481630 is about 308.9231802836.

The spelling of 29481630 in words is "twenty-nine million, four hundred eighty-one thousand, six hundred thirty".