1620226654 has 8 divisors (see below), whose sum is σ = 2430623808. Its totient is φ = 810018720.

The previous prime is 1620226631. The next prime is 1620226669. The reversal of 1620226654 is 4566220261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23502 + ... + 61585.

It is an arithmetic number, because the mean of its divisors is an integer number (303827976).

Almost surely, 2^1620226654 is an apocalyptic number.

1620226654 is a deficient number, since it is larger than the sum of its proper divisors (810397154).

1620226654 is an equidigital number, since it uses as much as digits as its factorization.

1620226654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94610.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1620226654 is about 40252.0391284715. The cubic root of 1620226654 is about 1174.5150626613.

The spelling of 1620226654 in words is "one billion, six hundred twenty million, two hundred twenty-six thousand, six hundred fifty-four".