672291742 has 16 divisors (see below), whose sum is σ = 1014651072. Its totient is φ = 334081440.

The previous prime is 672291727. The next prime is 672291749. The reversal of 672291742 is 247192276.

It is a super-2 number, since 2×672291742² = 903952372722789128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 672291695 and 672291704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672291749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255192 + ... + 257812.

It is an arithmetic number, because the mean of its divisors is an integer number (63415692).

Almost surely, 2^672291742 is an apocalyptic number.

672291742 is a deficient number, since it is larger than the sum of its proper divisors (342359330).

672291742 is a wasteful number, since it uses less digits than its factorization.

672291742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3363.

The product of its digits is 84672, while the sum is 40.

The square root of 672291742 is about 25928.5892790179. The cubic root of 672291742 is about 876.0305645667.

The spelling of 672291742 in words is "six hundred seventy-two million, two hundred ninety-one thousand, seven hundred forty-two".