61430402 has 16 divisors (see below), whose sum is σ = 102861792. Its totient is φ = 27273120.

The previous prime is 61430353. The next prime is 61430417. The reversal of 61430402 is 20403416.

It is a happy number.

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, 31523 + ... + 33414.

It is an arithmetic number, because the mean of its divisors is an integer number (6428862).

Almost surely, 2^61430402 is an apocalyptic number.

61430402 is a deficient number, since it is larger than the sum of its proper divisors (41431390).

61430402 is a wasteful number, since it uses less digits than its factorization.

61430402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64993.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 61430402 is about 7837.7549081354. The cubic root of 61430402 is about 394.5733833372.

Adding to 61430402 its reverse (20403416), we get a palindrome (81833818).

The spelling of 61430402 in words is "sixty-one million, four hundred thirty thousand, four hundred two".