61430408 has 32 divisors (see below), whose sum is σ = 125045760. Its totient is φ = 28123200.

The previous prime is 61430353. The next prime is 61430417. The reversal of 61430408 is 80403416.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 10883 + ... + 15533.

It is an arithmetic number, because the mean of its divisors is an integer number (3907680).

Almost surely, 2^61430408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61430408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62522880).

61430408 is an abundant number, since it is smaller than the sum of its proper divisors (63615352).

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

61430408 is a wasteful number, since it uses less digits than its factorization.

61430408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4797 (or 4793 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 61430408 is about 7837.7552908980. The cubic root of 61430408 is about 394.5733961833.

The spelling of 61430408 in words is "sixty-one million, four hundred thirty thousand, four hundred eight".