1621264246 has 16 divisors (see below), whose sum is σ = 2783621376. Its totient is φ = 693749736.

The previous prime is 1621264231. The next prime is 1621264259. The reversal of 1621264246 is 6424621261.

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, 80436 + ... + 98551.

It is an arithmetic number, because the mean of its divisors is an integer number (173976336).

Almost surely, 2^1621264246 is an apocalyptic number.

1621264246 is a deficient number, since it is larger than the sum of its proper divisors (1162357130).

1621264246 is a wasteful number, since it uses less digits than its factorization.

1621264246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179643.

The product of its digits is 27648, while the sum is 34.

The square root of 1621264246 is about 40264.9257543088. The cubic root of 1621264246 is about 1174.7657286978.

The spelling of 1621264246 in words is "one billion, six hundred twenty-one million, two hundred sixty-four thousand, two hundred forty-six".