61401970 has 32 divisors (see below), whose sum is σ = 127628928. Its totient is φ = 20832768.

The previous prime is 61401947. The next prime is 61401971. The reversal of 61401970 is 7910416.

It is not an unprimeable number, because it can be changed into a prime (61401971) 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, 2269 + ... + 11311.

It is an arithmetic number, because the mean of its divisors is an integer number (3988404).

Almost surely, 2^61401970 is an apocalyptic number.

61401970 is an abundant number, since it is smaller than the sum of its proper divisors (66226958).

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

61401970 is a wasteful number, since it uses less digits than its factorization.

61401970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9154.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 61401970 is about 7835.9409135087. The cubic root of 61401970 is about 394.5125001193.

The spelling of 61401970 in words is "sixty-one million, four hundred one thousand, nine hundred seventy".