61240634 has 64 divisors (see below), whose sum is σ = 120234240. Its totient is φ = 22740480.

The previous prime is 61240631. The next prime is 61240679. The reversal of 61240634 is 43604216.

61240634 = T₃₇₁ + T₃₇₂ + ... + T₇₄₇.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61240631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216257 + ... + 216539.

It is an arithmetic number, because the mean of its divisors is an integer number (1878660).

Almost surely, 2^61240634 is an apocalyptic number.

61240634 is a deficient number, since it is larger than the sum of its proper divisors (58993606).

61240634 is a wasteful number, since it uses less digits than its factorization.

61240634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 61240634 is about 7825.6395265818. The cubic root of 61240634 is about 394.1666648689.

The spelling of 61240634 in words is "sixty-one million, two hundred forty thousand, six hundred thirty-four".