61949838 has 16 divisors (see below), whose sum is σ = 124876800. Its totient is φ = 20487096.

The previous prime is 61949821. The next prime is 61949891. The reversal of 61949838 is 83894916.

It is a congruent 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, 39888 + ... + 41411.

It is an arithmetic number, because the mean of its divisors is an integer number (7804800).

Almost surely, 2^61949838 is an apocalyptic number.

61949838 is an abundant number, since it is smaller than the sum of its proper divisors (62926962).

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

61949838 is a wasteful number, since it uses less digits than its factorization.

61949838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81431.

The product of its digits is 373248, while the sum is 48.

The square root of 61949838 is about 7870.8219392894. The cubic root of 61949838 is about 395.6823925133.

The spelling of 61949838 in words is "sixty-one million, nine hundred forty-nine thousand, eight hundred thirty-eight".